.container{
    display:flex;
    width: 100%;
    height:100vh;
    justify-content:center;
}
.btn_wrap{
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
}
.btn{
    width:10em;
    border-radius:20px;
    color: #fff;
    border:2px solid transparent;
    font-size: 2rem;
}
.btn_login{
    background-color: #a7bfe8;
}

.btn_login:hover{
    opacity: 0.5;
}

.btn_register{
    margin-bottom:.8em;
    background-color:#ee9ca7;
}
.btn_register:hover{
    opacity: 0.5;
}
#login_box{
    background:linear-gradient(to right, #ffdde1, #ee9ca7, #a7bfe8, #6190e8);
    background-size:500% 500%;
    background-position:50% 50%;
}
@media screen and (min-width: 1200px) {
    .btn{
        font-size: 1.1rem;
    }
}